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2010 Confidence Interval Detail
208/Scurry
208-903/Ira ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
D3 10,135,509 0.9623 10,532,588 21 823 .002200458
G1 44,721,997 0.9960 44,901,603 9 81 .031720469
G1 45,275,910 1.0905 41,518,487 8 29 .015160916
G1 46,449,950 1.0439 44,496,551 6 13 .012030113
G1 40,960,791 1.0208 40,126,167 3 5 .006286769
Random Totals: 187,544,157   181,575,396 47 951  
Catg J Exception Values: 2,993,984   3,184,604      
Catg D1 Exception Values: 10,890,862   9,445,204      
Total Test Values (4): 201,429,003   194,205,204      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,710,260

Confidence Interval Values (5)

State Lower Limit: 184,494,944 (State Test Value minus Margin of Error Percent)
Local Test Value: 201,429,003 (Within Confidence Interval)
State Upper Limit: 203,915,464 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 224,942,558 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories

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